US 11,655,714 B2
Vane and compressor and gas turbine having the same
Young Jin Jung, Pyeongtaek-si (KR); Jun Hyuk Seo, Pohang-si (KR); Sung Ryong Lee, Daegu (KR); and Jae Woo Choi, Changwon-si (KR)
Assigned to DOOSAN ENERBILITY CO., LTD., Changwon (KR)
Filed by DOOSAN ENERBILITY CO., LTD, Changwon-si (KR)
Filed on Jun. 8, 2020, as Appl. No. 16/895,261.
Prior Publication US 2021/0054742 A1, Feb. 25, 2021
Int. Cl. F01D 5/06 (2006.01); F01D 5/14 (2006.01); F02C 3/05 (2006.01)
CPC F01D 5/066 (2013.01) [F01D 5/142 (2013.01); F02C 3/05 (2013.01); F05D 2220/32 (2013.01); F05D 2240/12 (2013.01); F05D 2240/40 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A compressor vane comprising:
a vane bottom and a vane top;
a first surface facing compressed air moved from a front stage;
a second surface directed in a direction opposite to the first surface; and
two tangent lines in which the first and second surfaces meet, each of the two tangent lines extending between the vane bottom and the vane top,
wherein a height of the compressor vane in a direction starting from the vane bottom to the vane top is divided into a first region disposed closest to the vane bottom; a second region disposed farther from the vane bottom than the first region; and a third region disposed closest to the vane top,
wherein a rate of change, with respect to the height of the compressor vane, of a maximum separation distance, between the first surface and the second surface, divided by a distance from one to the other of the two tangent lines in a cross-section at heights of the respective first, second, and third regions correspond to a first rate of change, a second rate of change, and a third rate of change; and
the second rate of change is greater than the first and third rates of change and the third rate of change is greater than the first rate of change.